Patiromer Sorbitex: uses, dosing, side effects & brands

The following adverse reaction is discussed in greater detail elsewhere in the label: Hypomagnesemia [see Warnings and Precautions (5.2) ] Most common adverse reactions (incidence ≥ 2%) are constipation, hypomagnesemia, diarrhea, nausea, abdominal discomfort and flatulence. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Vifor Pharma, Inc. at 1-844-VELTASSA (1-844-835-8277) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Adult Patients Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of Veltassa cannot be directly compared to rates in the clinical trials of other drugs and may not reflect the rates observed in practice. In the safety and efficacy clinical trials, 666 adult patients received at least one dose of Veltassa, including 219 exposed for at least 6 months and 149 exposed for at least one year. Table 1 provides a summary of the most common adverse reactions (occurring in ≥ 2% of patients) in adult patients treated with Veltassa in these clinical trials. Most adverse reactions were mild to moderate. Constipation generally resolved during the course of treatment. Table 1: Adverse Reactions Reported in ≥ 2% of Patients Adverse Reactions Adult Patients treated with Veltassa (N=666) Note: Diarrhea is an aggregate term for Diarrhea and frequent bowel…

Veltassa is contraindicated in patients with a history of a hypersensitivity reaction to Veltassa or any of its components [see Adverse Reactions (6.1) ]. Known hypersensitivity to Veltassa or any of its components. ( 4 )

Veltassa has the potential to bind some oral co-administered medications, which could decrease their gastrointestinal absorption. Binding of Veltassa to other oral medications not listed in Table 3 below could cause decreased gastrointestinal absorption and loss of efficacy when taken close to the time Veltassa is administered. Administer other oral medications at least 3 hours before or 3 hours after Veltassa [see Dosage and Administration (2.1) and Clinical Pharmacology (12.3) ] . Take other orally administered drugs at least 3 hours before or 3 hours after Veltassa except those shown to not have a clinically important interaction. ( 2.1 , 7 ) 7.1 Clinically Important Interaction of Veltassa with Other Drugs The in-vitro binding of the following drugs to patiromer was evaluated and potentially clinically significant binding was observed. Some drugs were subsequently tested in-vivo and significant reduction in systemic exposure was observed [see Dosage and Administration (2.1) and Clinical Pharmacology (12.3) ] . Binding by Veltassa may reduce the systemic exposure and decrease the clinical efficacy of the co-administered drugs shown in Table 2. The administration of these drugs (and any drugs not listed in Table 3) should be separated by at least 3 hours from Veltassa. Table 2: Clinically important drug interactions of Veltassa Angiotensin II receptor blockers (ARB) Telmisartan β-adrenoceptor blockers (β-blocker) Bisoprolol, carvedilol, nebivolol Antibiotics Ciprofloxacin Anti-Parathyroid Agents and Thyroid Preparations Levothyroxine Blood Glucose Lowering Drugs Metformin Immunosuppressants Mycophenolate mofetil Others Quinidine, thiamine 7.2 No Observed Clinically Important Interaction of Veltassa with Other Drugs The binding of the following drugs to patiromer was evaluated [see Clinical Pharmacology (12.3) ] and no clinically significant binding was observed. No separation of dosing is required for these drugs. Table 3: No observed clinically important drug interactions of Veltassa Angiotensin-converting enzyme (ACE) inhibitors Benazepril, captopril, enalapril, fosinopril, lisinopril, perindopril, quinapril, ramipril, trandolapril Angiotensin II receptor blockers (ARB) Azilsartan, candesartan, irbesartan, losartan, olmesartan, valsartan β-adrenoceptor blockers (β-blocker) Metoprolol Loop diuretics Furosemide, bumetanide, torasemide Mineralocorticoid receptor antagonists (MRA) Eplerenone, finerenone, spironolactone Neprilysin inhibitors Sacubitril Sodium-glucose cotransporter-2 (SGLT-2) inhibitors Canagliflozin, dapagliflozin, empagliflozin Antibiotics Trimethoprim, amoxicillin, cephalexin Anticoagulants Warfarin, apixaban, rivaroxaban Anti-parathyroid agents and Thyroid preparations Cinacalcet Antithrombotic agents Clopidogrel, acetylsalicylic acid Blood glucose lowering drugs Glipizide Calcium channel blockers Amlodipine, verapamil Immunosuppressants Tacrolimus Others Lithium, allopurinol, atorvastatin, digoxin, phenytoin, riboflavin, sevelamer